linux-kernel - Re: [PATCH v11] mm: slub: move sysfs slab alloc/free interfaces to debugfs

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Message-ID: <d79ff9cd-e72d-0e6a-1fb0-e8a64b20138a@suse.cz>
Date:   Tue, 8 Jun 2021 11:41:46 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Faiyaz Mohammed <faiyazm@...eaurora.org>, cl@...ux.com,
        penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, greg@...ah.com, glittao@...il.com,
        andy.shevchenko@...il.com
Cc:     vinmenon@...eaurora.org
Subject: Re: [PATCH v11] mm: slub: move sysfs slab alloc/free interfaces to
 debugfs

On 6/8/21 10:45 AM, Faiyaz Mohammed wrote:
> alloc_calls and free_calls implementation in sysfs have two issues,
> one is PAGE_SIZE limitation of sysfs and other is it does not adhere
> to "one value per file" rule.
> 
> To overcome this issues, move the alloc_calls and free_calls
> implementation to debugfs.
> 
> Debugfs cache will be created if SLAB_STORE_USER flag is set.
> 
> Rename the alloc_calls/free_calls to alloc_traces/free_traces,
> to be inline with what it does.
> 
> Signed-off-by: Faiyaz Mohammed <faiyazm@...eaurora.org>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>

Thanks!